A blog is that is all about mathematics and calculators, two of my passions in life.

Tuesday, December 17, 2013

HP Prime: CAS Commands in Home Mode

(Common) CAS Commands in Home Mode

(udpated 4/17/2014)

Two things to aware of:

1. Any command from the CAS mode to be used in the Home Mode, regardless of entry, must have a "CAS." prefix. Examples include CAS.diff, CAS.simplify, etc. 2. Algebraic (symbolic) objects need single quotes surrounding them. They can be called by pressing Shift+Parenthesis Key (). 3. Not all CAS commands work as expected in Home and Programming. My focus is on the Home mode.

Simplify: CAS, 1, 1

Syntax:Non-RPN: CAS.simplify('expression')RPN: Not recommended - as it will numerically evaluate the expression

Expand: CAS, 1, 3

Syntax: CAS.expand('expression')RPN: Not recommended - as it will numerically evaluate the expression

Help: As advised, in home mode I enter CAS.diff('COS(X)*SIN(X)') but the calculator returns "0" instead of the differentiated function. This is typical of my results. My version info is 2013 11 25 (5447), CAS version 1.1.0-27

Thanks Eddie for your insight. I was playing around with my new HP Prime and thought I would tackle something benign like Newton's method. I'm just not getting the syntax to call CAS.diff on my function defined as F1(x) in the Function Symbolic View for each of the iterations. I've tried "f := CAS.diff('F1','X');" but to no avail. Do you have ideas on this?

Hi!I just went from 50g to prime and i struggle a little with pretty simple things :)Could you please post an example on how to solve for zeros in Home with all keystrokes included? I have mine set to RPN mode

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